Description
Model 50BA-033-127 is a 50 Ohm benchtop attenuator assembly containing one solid-state step attenuator. The attenuator has an attenuation range of 0 to 127dB by 1dB steps and operates from 30 MHz to 3 GHz. The attenuator can be controlled manually or remotely. Its current attenuation setting is displayed on the front panel. It is available with SMA female 50 Ohm coaxial RF connectors. The RF connectors are located on the front panel. We label the RF connectors as Input and Output as a naming convention only. The attenuator operates bi-directionally.
Manual Attenuator Control
On the front panel is a manual lever switch. The lever can be used to adjust the attenuation up/down. The lever is a momentary type switch so you can “tap to step” or “hold to jog”. As you manually change the attenuation setting of the attenuator you will see its displayed dB value change simultaneously. You will also view any changes that a remotely connected user makes to the dB setting of the attenuator.
Remote Attenuator Control
This attenuator assembly can be remotely controlled via an Ethernet connection or a serial connection (i.e. RS-232). The network interface can be set in either DHCP mode or Fixed Address mode. We ship all new test systems from the factory in DHCP mode. A RS-232 connection to the test system is made using a null modem type serial cable. Baud rates up to 155200 Baud are available.
Remote Command Set
The firmware manual for our latest generation firmware is available for download. This manual lists all of our remote commands with command syntax and examples. Our firmware uses simple ASCII formatted remote commands. If you are connected to a JFW test system and send the HELP command, it will respond back with a list of all remote commands for that specific test system.
